Arsene Wenger was delighted with the performance of Lucas Perez in Arsenal's EFL Cup romp on Tuesday night.
The Spaniard scored a brace and provided an assist as the Gunners disposed of Nottingham Forest 4-0 in the third round of the league cup at the City Ground.
Regarding Perez's display and the confidence of the summer signing, Wenger told arsenal.com: "Of course, a striker is always growing when he scores goals and I felt that he has shown tonight.
"I liked his second goal because it was not only technique but it was determination, to fight for the ball and finish, I liked as well the part he played in the goal of (Alex) Oxlade-Chamberlain because it shows that he can combine with other people and that he is an intelligent player."
Wenger added: "He's quick, he's determined, he uses well his left foot - a bit too much for my taste, and not enough his right foot, but overall he's like all left-footed players.
"Individually, it's good because he can convince people that he has the level to play for us and it will help himself as well to grow in belief."
Perez opened his Arsenal account with a well-taken penalty in the 60th minute before adding a second 11 minutes later when rounding Forest keeper Vladimir Stojkovic.
In injury time, the former Deportivo La Coruña ace played a neat through ball for Oxlade-Chamberlain to wrap up proceedings in what was a very promising performance from the £17.1million signing.